public async Task SendPasswordResetEmailAsync(
ISiteContext siteSettings,
string toAddress,
string subject,
string resetUrl)
{
SmtpOptions smtpOptions = GetSmptOptions(siteSettings);
if (smtpOptions == null)
{
var logMessage = $"failed to send password reset email because smtp settings are not populated for site {siteSettings.SiteName}";
log.LogError(logMessage);
return;
}
EmailSender sender = new EmailSender();
// in account controller we are calling this method without await
// so it doesn't block the UI. Which means it is running on a background thread
// similar as the old ThreadPool.QueueWorkItem
// as such we need to handle any error that may happen so it doesn't
// brind down the thread or the process
try
{
var plainTextMessage
= await viewRenderer.RenderViewAsString <string>("EmailTemplates/PasswordResetTextEmail", resetUrl);
var htmlMessage
= await viewRenderer.RenderViewAsString <string>("EmailTemplates/PasswordResetHtmlEmail", resetUrl);
await sender.SendEmailAsync(
smtpOptions,
toAddress,
siteSettings.DefaultEmailFromAddress,
subject,
plainTextMessage,
htmlMessage).ConfigureAwait(false);
}
catch (Exception ex)
{
log.LogError("error sending password reset email", ex);
}
}
public async Task AccountPendingApprovalAdminNotification(
ISiteContext siteSettings,
ISiteUser user)
{
if (siteSettings.AccountApprovalEmailCsv.Length == 0)
{
return;
}
SmtpOptions smtpOptions = GetSmptOptions(siteSettings);
if (smtpOptions == null)
{
var logMessage = $"failed to send new account notifications to admins because smtp settings are not populated for site {siteSettings.SiteName}";
log.LogError(logMessage);
return;
}
string subject = "新用户审批";
EmailSender sender = new EmailSender();
try
{
var plainTextMessage
= await viewRenderer.RenderViewAsString <ISiteUser>("EmailTemplates/AccountPendingApprovalAdminNotificationTextEmail", user).ConfigureAwait(false);
var htmlMessage
= await viewRenderer.RenderViewAsString <ISiteUser>("EmailTemplates/AccountPendingApprovalAdminNotificationHtmlEmail", user).ConfigureAwait(false);
await sender.SendMultipleEmailAsync(
smtpOptions,
siteSettings.AccountApprovalEmailCsv,
siteSettings.DefaultEmailFromAddress,
subject,
plainTextMessage,
htmlMessage).ConfigureAwait(false);
}
catch (Exception ex)
{
log.LogError("error sending email verification email", ex);
}
}
private SmtpOptions GetSmptOptions(ISiteContext siteSettings)
{
if (string.IsNullOrWhiteSpace(siteSettings.SmtpServer))
{
return(globalSmtpSettings);
}
SmtpOptions smtpOptions = new SmtpOptions();
smtpOptions.Password = siteSettings.SmtpPassword;
smtpOptions.Port = siteSettings.SmtpPort;
smtpOptions.PreferredEncoding = siteSettings.SmtpPreferredEncoding;
smtpOptions.RequiresAuthentication = siteSettings.SmtpRequiresAuth;
smtpOptions.Server = siteSettings.SmtpServer;
smtpOptions.User = siteSettings.SmtpUser;
smtpOptions.UseSsl = siteSettings.SmtpUseSsl;
return(smtpOptions);
}
public async Task SendAccountConfirmationEmailAsync(
ISiteContext siteSettings,
string toAddress,
string subject,
string confirmationUrl)
{
SmtpOptions smtpOptions = GetSmptOptions(siteSettings);
if (smtpOptions == null)
{
var logMessage = $"failed to send account confirmation email because smtp settings are not populated for site {siteSettings.SiteName}";
log.LogError(logMessage);
return;
}
EmailSender sender = new EmailSender();
try
{
var plainTextMessage
= await viewRenderer.RenderViewAsString <string>("EmailTemplates/ConfirmAccountTextEmail", confirmationUrl).ConfigureAwait(false);
var htmlMessage
= await viewRenderer.RenderViewAsString <string>("EmailTemplates/ConfirmAccountHtmlEmail", confirmationUrl).ConfigureAwait(false);
await sender.SendEmailAsync(
smtpOptions,
toAddress,
siteSettings.DefaultEmailFromAddress,
subject,
plainTextMessage,
htmlMessage).ConfigureAwait(false);
}
catch (Exception ex)
{
log.LogError("error sending account confirmation email", ex);
}
}
public async Task SendEmailAsync(
SmtpOptions smtpOptions,
string to,
string from,
string subject,
string plainTextMessage,
string htmlMessage,
string replyTo = null)
{
if (string.IsNullOrWhiteSpace(to))
{
throw new ArgumentException("no to address provided");
}
if (string.IsNullOrWhiteSpace(from))
{
throw new ArgumentException("no from address provided");
}
if (string.IsNullOrWhiteSpace(subject))
{
throw new ArgumentException("no subject provided");
}
var hasPlainText = !string.IsNullOrWhiteSpace(plainTextMessage);
var hasHtml = !string.IsNullOrWhiteSpace(htmlMessage);
if (!hasPlainText && !hasHtml)
{
throw new ArgumentException("no message provided");
}
var m = new MimeMessage();
m.From.Add(new MailboxAddress("", from));
if (!string.IsNullOrWhiteSpace(replyTo))
{
m.ReplyTo.Add(new MailboxAddress("", replyTo));
}
m.To.Add(new MailboxAddress("", to));
m.Subject = subject;
//m.Importance = MessageImportance.Normal;
//Header h = new Header(HeaderId.Precedence, "Bulk");
//m.Headers.Add()
BodyBuilder bodyBuilder = new BodyBuilder();
if (hasPlainText)
{
bodyBuilder.TextBody = plainTextMessage;
}
if (hasHtml)
{
bodyBuilder.HtmlBody = htmlMessage;
}
m.Body = bodyBuilder.ToMessageBody();
using (var client = new SmtpClient())
{
//client.ServerCertificateValidationCallback = delegate (
// Object obj, X509Certificate certificate, X509Chain chain,
// SslPolicyErrors errors)
//{
// return (true);
//};
await client.ConnectAsync(
smtpOptions.Server,
smtpOptions.Port,
smtpOptions.UseSsl)
.ConfigureAwait(false);
//await client.ConnectAsync(smtpOptions.Server, smtpOptions.Port, SecureSocketOptions.StartTls);
// Note: since we don't have an OAuth2 token, disable
// the XOAUTH2 authentication mechanism.
client.AuthenticationMechanisms.Remove("XOAUTH2");
// Note: only needed if the SMTP server requires authentication
if (smtpOptions.RequiresAuthentication)
{
await client.AuthenticateAsync(smtpOptions.User, smtpOptions.Password)
.ConfigureAwait(false);
}
await client.SendAsync(m).ConfigureAwait(false);
await client.DisconnectAsync(true).ConfigureAwait(false);
}
}
